The importance of stretching

15. Runners who stretch before running burn 5 percent fewer calories than runners who don't stretch.
Contrary to what trainers have told us for decades, pre-run stretching isn't helpful, according to one recent study, which also found that nonstretchers ran 3.4 percent farther than stretchers. "Stretching appears to acutely decrease muscle-force production capacity," its authors write, citing decreased leg-press performance, vertical jumping height, knee-extensor concentric torque, and maximum plantar flexion torque, which "remained depressed even 60 minutes after the stretching routine."
When we stretch our muscles and make them leaner and not so bulky . You should stretch before an after you work out, you will not only become leaner but you will be less likely to pull a muscle you when you are exercising . The small things will take you by surprise when you see how they improve your workouts and daily life.